form1.vb

TCP SOCKET 通讯客户端源代码,可以对你有帮助

Imports System.Net
Imports System.Net.Sockets
Imports System.IO
Imports System.Threading
Imports System.Text
Imports System.Xml.Serialization





Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写处置以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意：以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents RichTextBox1 As System.Windows.Forms.RichTextBox
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Friend WithEvents StatusBar1 As System.Windows.Forms.StatusBar
    Friend WithEvents StatusBarPanel1 As System.Windows.Forms.StatusBarPanel
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.TextBox2 = New System.Windows.Forms.TextBox()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Button2 = New System.Windows.Forms.Button()
        Me.RichTextBox1 = New System.Windows.Forms.RichTextBox()
        Me.TextBox3 = New System.Windows.Forms.TextBox()
        Me.Button3 = New System.Windows.Forms.Button()
        Me.StatusBar1 = New System.Windows.Forms.StatusBar()
        Me.StatusBarPanel1 = New System.Windows.Forms.StatusBarPanel()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.Label2 = New System.Windows.Forms.Label()
        CType(Me.StatusBarPanel1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(128, 24)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(128, 21)
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = "xxx-80"
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(128, 64)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.Size = New System.Drawing.Size(128, 21)
        Me.TextBox2.TabIndex = 1
        Me.TextBox2.Text = "6688"
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(24, 96)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(80, 24)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "连接"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(152, 96)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(72, 24)
        Me.Button2.TabIndex = 3
        Me.Button2.Text = "取消连接"
        '
        'RichTextBox1
        '
        Me.RichTextBox1.Location = New System.Drawing.Point(16, 128)
        Me.RichTextBox1.Name = "RichTextBox1"
        Me.RichTextBox1.Size = New System.Drawing.Size(384, 104)
        Me.RichTextBox1.TabIndex = 4
        Me.RichTextBox1.Text = "RichTextBox1"
        '
        'TextBox3
        '
        Me.TextBox3.Location = New System.Drawing.Point(16, 240)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.Size = New System.Drawing.Size(232, 21)
        Me.TextBox3.TabIndex = 5
        Me.TextBox3.Text = "金额 > 0"
        '
        'Button3
        '
        Me.Button3.Location = New System.Drawing.Point(272, 240)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(128, 24)
        Me.Button3.TabIndex = 6
        Me.Button3.Text = "发送查询条件"
        '
        'StatusBar1
        '
        Me.StatusBar1.Location = New System.Drawing.Point(0, 271)
        Me.StatusBar1.Name = "StatusBar1"
        Me.StatusBar1.Panels.AddRange(New System.Windows.Forms.StatusBarPanel() {Me.StatusBarPanel1})
        Me.StatusBar1.ShowPanels = True
        Me.StatusBar1.Size = New System.Drawing.Size(416, 22)
        Me.StatusBar1.TabIndex = 7
        Me.StatusBar1.Text = "StatusBar1"
        '
        'StatusBarPanel1
        '
        Me.StatusBarPanel1.Text = "StatusBarPanel1"
        Me.StatusBarPanel1.Width = 200
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(32, 32)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(80, 16)
        Me.Label1.TabIndex = 8
        Me.Label1.Text = "服务器名称"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(32, 64)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(88, 16)
        Me.Label2.TabIndex = 9
        Me.Label2.Text = "端口名称"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(416, 293)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label2, Me.Label1, Me.StatusBar1, Me.Button3, Me.TextBox3, Me.RichTextBox1, Me.Button2, Me.Button1, Me.TextBox2, Me.TextBox1})
        Me.Name = "Form1"
        Me.Text = "Form1"
        CType(Me.StatusBarPanel1, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region



    Dim Client As TcpClient
    Dim stream As NetworkStream
    Dim s As Integer


    Dim Ms As String

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        RichTextBox1.Text = ""
    End Sub

    '连接
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim port As Integer = 0
        Client = New TcpClient()
        Try
            port = TextBox2.Text
            Try
                Client.Connect(TextBox1.Text, port)
                StatusBarPanel1.Text = "与服务器建立了连接"
                Dim Mythread As New Thread(AddressOf target)
                Mythread.Start()

            Catch ee As Exception
                MsgBox(ee.Message)


            End Try

        Catch
            MsgBox("请输入整数")

        End Try

    End Sub

    Sub target()
        Dim Sa, Sb, Sc, Sd As String


        While True
            Try
                stream = Client.GetStream
                Dim bb(64) As Byte
                Dim i = stream.Read(bb, 0, 64)
                Dim ss As String = Encoding.UTF8.GetString(bb)
                RichTextBox1.AppendText(ss)
            Catch
            End Try

        End While

    End Sub

    '取消连接
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Try
            Client.Close()
            StatusBarPanel1.Text = "断开与服务器的连接"

        Catch
            MsgBox("您没有申请连接，断开无效")
        End Try

    End Sub

    '发送查询条件
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        RichTextBox1.Text = "编号   姓名   发奖名称   金额" + Chr(13) + Chr(10)

        Dim stream As NetworkStream = Client.GetStream
        'Client.GetStream返回用以发送和接收数据的流

        Dim Str As String = TextBox3.Text + Chr(13) + Chr(10)
        Dim msg As Byte() = Encoding.UTF8.GetBytes(Str)

        ' 将数据写入流
        'stream.Write(写入流的数据, 缓冲区中开始写入数据的位置, 要写入流的字节数)

        stream.Write(msg, 0, msg.Length)
        stream.Flush() '刷新

    End Sub



End Class